Bus heating system



BUS HEATING SYSTEM Filed Feb. 2, 192

amoemtoz LEE P. HYNE5 Patented May 12, 1931 UNITED STATES PATENT; OFFICEmm P. 'mmns, or ALBANY, NEW Yoax, assrenoa, BY MESNE Assmimmv'rs, ro

CONSOLIDATED CAR-HEATING COMPANY, INC., ALBANY, NEW YORK, A. CORPO-BATION OF NEW YORK BUS HEATING srs'rmu Application filed February 2,1926. Serial No. 85,500.

The invention'will'be hereinafter fully set forth and particularlypointed out in the claims.

My invention is shown diagrammatically in the accompanying drawing.

My invention relates to means for heating vehicles, particularly busses,which are equipped with hydrocarbon engines. The source ofv heat which Iemploy is that derived from the re-combustion of the exhaust from theaforesaid engine, and, in the present case,

- I utilize that heat in asteamboiler wherefrom steam pipes convey thesteam to suitable radiators on both the lower and upper decks of a bus,or other place Where heat is desired in a railway car, boat or othervehicle.

Referring to the drawing, R represents the body of avehicle to beheated. A represents the'exhaust manifold of a hydrocarbon engine of theinternal combustlon type and B the exhaust pipe leading therefrom andterminating at b in a suitable nozzle for deter- ..mining the velocityof the outflow. C is a sleeve surrounding tube B but of larger diameterinto which atmospheric air is drawn for the re-combustion. The sleeve 0is continued by a tube D which is closed at its left end, but-isperforated by a multiplicity of holes which give the effect of a wirescreen,

permitting the outflow of (gas but preventing the entry of the flame.

at its right, while outside of the tubes D and E is the casing F fromthe left end of which the hot gases emerge throu h the tube H. In

.- operation the exhaust which supplies fuel for the burner I divertthem from pipe H into utside of tube D 1s a baflie tube E closed at itsleft end but open a branch pipe S, from which I pass them into the fluesof a tubular boiler J. After the heat has been abstracted by the waterin the boiler the waste products pass by pipe V into the final exhaustpipe W. At the junction of pipes H and S I place a damper K by means ofwhich the products may be diverted wholly or partlyinto pifie S or theexhaust pipe W; This damper may be manually controlled by a lever 1 onthe instrument board/of the vehicle, but in the event of an undesiredsteam pressure in the boiler a diaphragm located within a diaphragmchamber L subject to the steam pressure acts through lever P to closedamper K against pipe S, as

shown by dotted lines, thereby diverting the 7 hot productsfrom theboiler and into the exhaust pipe W. While the damper may be operated bythe hand leyer K independently of diaphragm L, so long as the diaphragmis more or less inactive, the full force of the steam upon the diaphragmwill close the damper by moving the hand-lever backwards. By this meansthe boiler is adequately protected against surplus pressure, although anordinary safety-valve N may be added if desired/ From boiler J a steampipe 0 rises from which branch pipe 0 may go to the heat-distributingradiators on the lower deck of the vehicle and, if desired, a secondpipe 0 may. lead to similar radiators on the upper deck. Both 0 and 0will drain back into the boiler. v

What I claim as new and desire to secure by Letters Patent is:

1. In a heating system, the. combination with a boiler provided with aheating chamber, and a radiator located in the space to be heated andconnected with said boiler, ofa device for reburning exhaust gases of aninternal combustion engine, an exhaust pipe for said reburned gases, aduct joining said exhaust pipe and leading to the heating chamber ofsaid boiler, a damper located at the junction of the duct with theexhaust pipe to selectively control delivery of reburned gases to saidboiler or to said exhaust pipe, and means connected with the boiler foractuating said damper.

2. In a heating system, the combination with a boiler provided with aheating chamber, and a radiator located in the space to be heated andconnected with said boiler, of a device for reburning exhaust gases ofan internal combustion engine, an exhaust pipe for said reburned gases,a duct joining said exhaust pipe and leading 'to the heating chamber ofsaid boiler,- a damper located at the junction of the duct with theexhaust pipe to selectively control delivery of reburned gases to saidheating chamber or to said exhaust pipe, means connected with the boilerfor actuating said damper, and

means for manually operating said damper independently of the firstmentioned actuating means.

3. In a heating system, the combination withra boiler provided with aheating cham- 'ber and a steam generating chamber, and

a radiator located in the space to be heated and connected with saidsteam generating vchamber; of a device for reburning exhaust" gases ofan internal combustion engine, an exhaust pipe for said reb'urned gases,a duct leading from said exhaust pipe to the heating chamber of saidboiler, a damper located at the junction of said duct with the exhaustpipe to selectively control delivery of reburned gases to either, andmeanscontrolled by the pressure in said steam generating chamber .forautomatically damper. p v

Signed "at Albany, county of Albany, lSzate of New York, this 30th dayof J an.,

' LEE P. HYNES.

operating said

